Non-Aqueous Titration

Ephedrine HCl is often estimated by which type of non-aqueous titration?

• • A) Acidimetry

• • B) Alkalimetry

• • C) Redox titration

• • D) Complexometric titration

Why is glacial acetic acid used as a solvent in non-aqueous titration?

• a) It has a high dielectric constant

• b) It enhances the strength of weak acids and bases

• c) It acts as an oxidizing agent

• d) It reacts with the titrant

Non-aqueous titration is mainly used for the titration of:

• a) Strong acids and strong bases

• b) Weak acids and weak bases

• c) Strong acids and weak bases

• d) Strong bases and weak acids

What is the primary advantage of using non-aqueous solvents in titrations over aqueous solvents?

• • A) Non-aqueous solvents are less expensive.

• • B) Non-aqueous solvents are environmentally friendly.

• • C) Non-aqueous solvents can dissolve a wider range of substances.

• • D) Non-aqueous solvents have a higher heat capacity.

Which of the following is a disadvantage of non-aqueous titration?

• • A) Limited solubility of analytes

• • B) High cost of solvents

• • C) Difficulty in endpoint detection

• • D) All of the above

In non-aqueous titration, what is the purpose of using a blank titration?

• • A) To calibrate the pH meter

• • B) To determine the endpoint

• • C) To correct for any impurities in the solvent

• • D) To standardize the titrant

In non-aqueous titrations, which type of titrant is commonly used for the titration of weak bases?

• • A) Strong acids

• • B) Strong bases

• • C) Weak acids

• • D) Weak bases

Which type of solvent is used in non-aqueous titration to enhance the strength of weak acids?

• a) Aprotic solvents

• b) Amphiprotic solvents

• c) Protophilic solvents

• d) Protogenic solvents

The leveling effect is caused by:

• a) High solubility of acids and bases in water

• b) The solvent's ability to donate or accept protons

• c) The presence of excess ions in solution

• d) The molecular weight of the acid or base

Which of the following is a primary standard used in non-aqueous titrations?

• • A) Sodium chloride

• • B) Potassium hydrogen phthalate

• • C) Sodium carbonate

• • D) Potassium permanganate